8- Mathieu Flamini | Arsenal

Cost: Free

More than just a few eyebrows were raised when Arsene Wenger decided to bring back Flamini after his spell at AC Milan.

The Frenchman never really set the world alight during his first stint at the Emirates, but has so far more than made the grade this season.

His experience and defensive solidity have put Arsenal in a strong position this term, and the fact that he cost nothing turns him into one of the best bargain buys in recent footballing history.

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